[  OK  ] Reached target Graphical Interface.
         Starting Update UTMP about System Runlevel Changes...
         Starting Load/Save RF Kill Switch Status...
[  OK  ] Started Load/Save RF Kill Switch Status.
[  OK  ] Started Update UTMP about System Runlevel Changes.

Debian GNU/Linux 9 syzkaller ttyS0

Warning: Permanently added '10.128.0.239' (ECDSA) to the list of known hosts.
executing program
syzkaller login: [   31.895975] IPVS: ftp: loaded support on port[0] = 21
[   32.051752] ------------[ cut here ]------------
[   32.056602] kernel BUG at fs/notify/dnotify/dnotify.c:131!
[   32.063356] invalid opcode: 0000 [#1] PREEMPT SMP KASAN
[   32.068722] Modules linked in:
[   32.071904] CPU: 1 PID: 2902 Comm: kworker/u4:5 Not tainted 4.14.203-syzkaller #0
[   32.079507] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   32.088874] Workqueue: events_unbound fsnotify_mark_destroy_workfn
[   32.095179] task: ffff8880ac34e500 task.stack: ffff8880ac350000
[   32.101229] RIP: 0010:dnotify_free_mark+0x45/0x50
[   32.106069] RSP: 0018:ffff8880ac357ca0 EFLAGS: 00010297
[   32.111418] RAX: ffff8880ac34e500 RBX: ffffffff8793a5a0 RCX: 1ffff1101586afa2
[   32.118681] RDX: 0000000000000000 RSI: ffff8880ac34edb0 RDI: ffff888093d6bbb8
[   32.125939] RBP: ffff888093d6bb40 R08: ffffffff8b995350 R09: 0000000000000000
[   32.133203] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882391d0000
[   32.140471] R13: ffff8880ac357d00 R14: ffff888093d6bb50 R15: ffff888093d6bb58
[   32.147732] FS:  0000000000000000(0000) GS:ffff8880ba500000(0000) knlGS:0000000000000000
[   32.155947] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.161832] CR2: 000055839f5d1ed8 CR3: 00000000b02f6000 CR4: 00000000001406e0
[   32.169100] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.176376] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.183648] Call Trace:
[   32.186233]  fsnotify_final_mark_destroy+0x77/0xb0
[   32.191179]  fsnotify_mark_destroy_workfn+0x1ec/0x2e0
[   32.196363]  ? lock_acquire+0x170/0x3f0
[   32.200331]  ? fsnotify_final_mark_destroy+0xb0/0xb0
[   32.205424]  ? rcu_lockdep_current_cpu_online+0xed/0x140
[   32.210864]  process_one_work+0x793/0x14a0
[   32.215088]  ? work_busy+0x320/0x320
[   32.218783]  ? worker_thread+0x158/0xff0
[   32.222837]  ? _raw_spin_unlock_irq+0x24/0x80
[   32.227317]  worker_thread+0x5cc/0xff0
[   32.231193]  ? rescuer_thread+0xc80/0xc80
[   32.235324]  kthread+0x30d/0x420
[   32.238686]  ? kthread_create_on_node+0xd0/0xd0
[   32.243342]  ret_from_fork+0x24/0x30
[   32.247040] Code: 48 c1 ea 03 80 3c 02 00 75 23 48 83 7d 78 00 75 15 e8 50 37 bf ff 48 89 ee 48 8b 3d 6e e6 70 08 5d e9 70 d2 e8 ff e8 3b 37 bf ff <0f> 0b e8 f4 08 e9 ff eb d6 66 90 41 57 41 56 41 55 41 54 49 89 
[   32.266219] RIP: dnotify_free_mark+0x45/0x50 RSP: ffff8880ac357ca0
[   32.273436] ---[ end trace 333175282f3b5516 ]---
[   32.278194] Kernel panic - not syncing: Fatal exception
[   32.283997] Kernel Offset: disabled
[   32.287609] Rebooting in 86400 seconds..